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Suborbital space tourism finally arrives | FCC prepares to run public C-band auction | The big four in the U.S. launch industry — United Launch Alliance, SpaceX, Blue Origin and Northrop Grumman — hope to be one of two providers that will receive five-year contracts later this year to launch national security payloads starting in 2022. | China’s launch rate stays high | The International Space Station is the largest ever crewed object in space.

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An extinction-level event for NASA science

March 12, 2025

NASA’s science missions have transformed our understanding of the Universe, from breathtaking images of deep space to robotic explorers on Mars. But now, a reported 50% cut to NASA’s science budget threatens to shut down missions, halt discoveries, and devastate the future of space exploration. This week, Casey Dreier and Jack Kiraly from The Planetary Society’s space policy team break down the fight ahead, explain why these cuts would be catastrophic, and explain how you can take action before...

Space Policy Edition: Locke, liberty, and the...

March 7, 2025

Type Size OptionsPlay from 00:00 iFrame code<iframe src=”https://omny.fm/shows/planetary-radio-space-exploration-astronomy-and-sc/space-policy-edition-locke-liberty-and-the-pursuit/embed?style=Cover” width=”100%” height=”180″ allow=”autoplay; clipboard-write” frameborder=”0″ title=”Space Policy Edition: Locke, liberty, and the pursuit of happiness (in space)”></iframe>

Breaking down Bennu: OSIRIS-REx finds life’s building...

March 5, 2025

NASA’s OSIRIS-REx mission has returned pristine samples from asteroid Bennu to Earth, and the early results are remarkable. Sample analysts have confirmed the presence of abundant organic compounds, nitrogen-rich material, and evidence of past liquid water, all key ingredients that could help us understand the role asteroids played in delivering the building blocks of life to Earth. This week, we’re joined by Scott Sandford, co-investigator on OSIRIS-REx and a research scientist at NASA’s Ames Research Center. He explores the...

Genesis: The sample return mission that fell...

February 26, 2025

Twenty years ago, NASA’s Genesis spacecraft returned to Earth carrying precious samples of the solar wind, only to crash-land in the Utah desert. But that wasn’t the end of the mission. Amy Jurewicz, Assistant Research Professor Emeritus at Arizona State University and former project scientist at NASA’s Jet Propulsion Laboratory for the Genesis team, takes us inside the mission’s highs and lows, from its Apollo-inspired origins to its contributions to cosmochemistry and space weather. We discuss what this mission...

Astronaut Hayley shares her brave adventure

February 19, 2025

From IV drips to rocket ships, Hayley Arceneaux has been on a journey. She joins Planetary Radio to discuss her memoir “Wild Ride” and her newly released kid’s book “Astronaut Hayley’s Brave Adventure,” which tell the story of how her experiences with childhood cancer at St. Jude Children’s Research Hospital set the stage for her journey to space aboard SpaceX’s Inspiration4 mission. Then, Planetary Society Chief Scientist, Bruce Betts, talks about the g-forces experienced during astronaut training in What’s...

Near-Earth Asteroid 2024 YR4 and NASA under...

February 12, 2025

The internet is buzzing about Asteroid 2024 YR4, currently ranked as the highest-threat asteroid in our skies. But is it really cause for concern? Our Public Education Specialist, Kate Howells, breaks down the facts. Then, we shift from potential impacts to stunning space imagery as Finn Burridge from the Royal Observatory Greenwich shares how astrophotographers worldwide can participate in the Astronomy Photographer of the Year competition. Finally, our space policy experts, Casey Dreier and Jack Kiraly, discuss how the...

Space Policy Edition: Mars Sample Return, but...

February 7, 2025

Rocket Lab CEO Peter Beck joins the show to unpack his company’s bold, $4-billion fixed-price plan to bring Martian samples home, why he believes commercial partnerships can unlock new frontiers in planetary science, and his “soft spot” for interplanetary exploration. Then, Richard French — former JPL engineer and now VP of Business & Strategy at Rocket Lab — provides deeper insight into their proposed Mars Sample Return architecture, explaining how a single, vertically integrated team could cut costs and...

Kiss-and-capture: The dance of Pluto and Charon

February 5, 2025

How did Pluto meet its largest moon, Charon? Many have speculated that Charon formed in an impact, but traditional models of planetary formation have struggled to explain many of the quirks of this system. This week, Adeene Denton, a research scientist at the University of Arizona, shares her team’s new paper that suggests a “kiss-and-capture” may solve this mystery. Then Bruce Betts, The Planetary Society’s chief scientist, discusses contact binaries in our Solar System and shares a new Random...

Fresh wind blows from historical supernova

July 5, 2024

A mysterious remnant from a rare type of supernova recorded in 1181 has been explained for the first time. Two white dwarf stars collided, creating a temporary “guest star,” now labeled supernova (SN) 1181, which was recorded in historical documents in Japan and elsewhere in Asia. However, after the star dimmed, its location and structure remained a mystery until a team pinpointed its location in 2021. Now, through computer modeling and observational analysis, researchers have recreated the structure of...

Engineers find a way to protect microbes...

July 5, 2024

Microbes that are used for health, agricultural, or other applications need to be able to withstand extreme conditions, and ideally the manufacturing processes used to make tablets for long-term storage. MIT researchers have now developed a new way to make microbes hardy enough to withstand these extreme conditions. Their method involves mixing bacteria with food and drug additives from a list of compounds that the FDA classifies as “generally regarded as safe.” The researchers identified formulations that help to...

A 2D device for quantum cooling

July 5, 2024

To perform quantum computations, quantum bits (qubits) must be cooled down to temperatures in the millikelvin range (close to -273 Celsius), to slow down atomic motion and minimize noise. However, the electronics used to manage these quantum circuits generate heat, which is difficult to remove at such low temperatures. Most current technologies must therefore separate quantum circuits from their electronic components, causing noise and inefficiencies that hinder the realization of larger quantum systems beyond the lab. Researchers in EPFL’s...

Not so selfish after all: Viruses use...

July 5, 2024

Curious bits of DNA tucked inside genomes across all kingdoms of life historically have been disregarded since they don’t seem to have a role to play in the competition for survival. Or so researchers thought. These DNA pieces came to be known as “selfish genetic elements” because they exist, as far as scientists could tell, to simply reproduce and propagate themselves, without any benefit to their host organisms. They were seen as genetic hitchhikers that have been inconsequentially passed...

How dust pollution from shrinking Great Salt...

July 5, 2024

New research from the University of Utah demonstrates how wind-carried dust from the exposed bed of Great Salt Lake is disproportionately affecting disadvantaged communities in the Salt Lake metro area. The findings suggest restoring the lake to a healthy water level would reduce disparities in harmful dust exposure experienced by different racial/ethnic and socioeconomic groups, along with delivering other ecological and economic benefits. Exposure to particulate pollution arising from dry portions of the playa is highest among Pacific Islanders...

Cool roofs are best at beating cities'...

July 4, 2024

Painting roofs white or covering them with a reflective coating would be more effective at cooling cities like London than vegetation-covered “green roofs,” street-level vegetation or solar panels, finds a new study led by UCL researchers. Conversely, extensive use of air conditioning would warm the outside environment by as much as 1 degree C in London’s dense city centre, the researchers found. The research, published in Geophysical Research Letters, used a three-dimensional urban climate model of Greater London to...

Moon 'swirls' could be magnetized by unseen...

July 3, 2024

Lunar swirls are light-colored, sinuous features on the Moon’s surface, bright enough to be visible from a backyard telescope. Some people think they look like the brushstrokes in an abstract painting. But these are not mere artistic flourishes: NASA images show that the tendrils from some lunar swirls extend for hundreds of miles. Lunar swirls have defied easy explanation, but recent modeling and spacecraft data shed light on the twisty mystery. The data shows that rocks in the swirls...

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